REDRAW GuiFile
This command will Re-Draw the GuiFile's window, taking into account
any changes you may have made to the GUI with the ChangeGad command
or with the SetGad command (with the SHOW|HIDE keywords).
Use it after using ChangeGad or SetGad on all the gadgets you want
to change.
example :
setgad mygui.gc 1 HIDE
setgad mygui.gc 2 SHOW
redraw mygui.gc
A cooler redrawing can be achieved with the @{" PartRedraw " link partredraw } command.